Proteostasis News and Research

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Each mammalian cell contains up to 20,000 proteins, all of which must be maintained and regulated. Proteostasis is a complex pathway that functions to maintain all of the proteins within and around a cell.

New analysis reveals fundamental flaws in widely used measures of biological aging

A landmark review published today in Genomic Psychiatry challenges researchers to fundamentally reconsider how the field measures and conceptualizes biological aging.

3 Dec 2025

Polyamines restore gut regeneration in aging mice

With aging, the intestine gradually loses its ability to regenerate after damage. An international research team involving the Leibniz Institute on Aging - Fritz Lipmann Institute (FLI) in Jena and the University of Turin has now found that polyamines, small molecules produced naturally in the body, can play a decisive role in this process.

25 Nov 2025

Scientists uncover how brain enzyme OTULIN controls tau expression

Scientists have uncovered a surprising mechanism by which a brain enzyme called OTULIN controls the expression of tau, the protein that forms toxic tangles in Alzheimer's disease.

25 Nov 2025

Study finds GLP-1 drugs improve strength and reverse aging biology in mice

Researchers showed that GLP-1 receptor agonism counteracts aging across multiple organs in mice, improving strength and reversing molecular aging signatures without meaningful effects on body weight. These benefits depended largely on hypothalamic GLP-1R signaling and closely mirrored the anti-aging patterns produced by rapamycin.

23 Nov 2025

Global experts map out the practical steps that help extend life expectancy

The 1st World Longevity Summit in Kyotango, Japan brought together global experts to share advances in aging biology, lifestyle medicine, and community-based strategies for healthy longevity. Its joint declaration identified four pillars – social connection, plant-based diets, daily activity, and gratitude with purpose – as core foundations for extending healthy life expectancy worldwide.

19 Nov 2025

Disrupting protein quality control slows tumor growth in pediatric rhabdomyosarcoma

A new research paper was published in Volume 16 of Oncotarget on August 29, 2025, titled "In vivo manipulation of the protein homeostasis network in rhabdomyosarcoma."

29 Aug 2025

Dementia-like protein clumping found in early pancreatic cancer cells

Cancer Research UK-funded scientists have uncovered dementia-like behaviour in pancreas cells at risk of turning into cancer. The findings provide clues that could help in the treatment and prevention of pancreatic cancer, a difficult-to-treat disease linked to 6,900 deaths in the UK every year.

17 Aug 2025

Aging brains lose key proteins despite intact genetic blueprints

An international research team involving the Leibniz Institute on Aging - Fritz Lipmann Institute (FLI) in Jena, the Scuola Normale Superiore Pisa, and Stanford University has discovered that in the aging brain, certain proteins are lost even though their mRNA blueprints remain intact.

8 Aug 2025

Study sheds light on molecular mechanisms of brain aging

Aging and neurodegeneration are both known to disrupt the production of functional proteins in cells – a process called "proteostasis," or protein homeostasis.

31 Jul 2025

Selective impairment of translation contributes to brain aging in killifish

Aging selectively impairs the production of crucial DNA- and RNA-binding proteins, which contributes to hallmarks of aging in the brains of killifish, according to a new study.

31 Jul 2025

Proteome imbalance from aneuploidy linked to mitochondrial dysfunction

It has been known for several years that abnormal chromosome numbers lead to protein imbalances in the affected cells. Researchers at RPTU have now investigated the detailed effects of such imbalances.

27 Jun 2025

Can scientists predict life longevity from a drop of blood?

This study presents an intrinsic capacity clock, using blood samples to predict mortality risk and enhance understanding of aging and lifestyle impacts.

8 Jun 2025

Electron microscopy study shows how two enzymes work in tandem to process proteins

Healthy cells are constantly breaking down proteins and building up new ones with the help of enzymes aptly named unfoldases, because they unravel proteins tagged for destruction or recycling.

6 Jun 2025

Exploring the relationship between mitochondrial quality control mechanisms and atherosclerosis

Announcing a new article publication for Cardiovascular Innovations and Applications journal. Mitochondrial quality control (MQC) mechanisms - including biogenesis, dynamics, mitophagy, proteostasis, the unfolded protein response, and mitochondrial-derived vesicles - play critical roles in the development of atherosclerosis.

1 May 2025

Discovery of stable genes offers insights into aging and longevity

A new research paper was published in Aging (Aging-US) on January 27, 2025, in Volume 17, Issue 1, titled "Age-invariant genes: multi-tissue identification and characterization of murine reference genes."

26 Feb 2025

Unfolded protein response disruptions contribute to colorectal cancer and gut-related disorders

The intestinal epithelium is a highly dynamic barrier that regulates digestion, absorption, immune responses, and communication between the gut microbiota and the nervous system.

20 Feb 2025

New discovery on mitochondrial protein could transform Charcot-Marie-Tooth treatment

Researchers from Cologne, Bochum, Padova and Angers have discovered a novel connection between mitochondrial function, protein quality control and cellular health, whose failure could be the leading cause in the currently incurable neurological disease Charcot-Marie-Tooth (CMT).

14 Feb 2025

Proteostasis News and Research

Further Reading

New analysis reveals fundamental flaws in widely used measures of biological aging

Polyamines restore gut regeneration in aging mice

Scientists uncover how brain enzyme OTULIN controls tau expression

Study finds GLP-1 drugs improve strength and reverse aging biology in mice

Global experts map out the practical steps that help extend life expectancy

Disrupting protein quality control slows tumor growth in pediatric rhabdomyosarcoma

Dementia-like protein clumping found in early pancreatic cancer cells

Aging brains lose key proteins despite intact genetic blueprints

Study sheds light on molecular mechanisms of brain aging

Selective impairment of translation contributes to brain aging in killifish

Proteome imbalance from aneuploidy linked to mitochondrial dysfunction

Can scientists predict life longevity from a drop of blood?

Electron microscopy study shows how two enzymes work in tandem to process proteins

Exploring the relationship between mitochondrial quality control mechanisms and atherosclerosis

Discovery of stable genes offers insights into aging and longevity

Unfolded protein response disruptions contribute to colorectal cancer and gut-related disorders

New discovery on mitochondrial protein could transform Charcot-Marie-Tooth treatment

Study reveals sex-specific differences in microglial response to CSF1R inhibition

Proteomic mapping identifies biomarkers driving healthy aging and preventing chronic diseases

Could autophagy enhancement slow aging and combat Alzheimer's?

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